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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

With high probability acutely not harmful to aquatic algae.

Key value for chemical safety assessment

EC50 for freshwater algae:
240 mg/L

Additional information

Since no data on toxicity of ethylene oxide on aquatic algae are available a conclusion by read-across approach to propylene oxide (CAS 75-56-9) has been applied. The 96-h EC50 of propylene oxide was 240 mg/L measured on growth rate of the green alga Selenastrum capricornutum (Shell Research Ltd. 1986).

From the available test data for the structurally similar compound, it can be concluded, that the substance is with high probability acutely not harmful to algae.